resources of abc news, with terry moran, cynthia mcfadden, bill weir, and tonight, juju chang in new york city, this is "nightline," december 6th, 2012. >> good evening, i'm juju chang. tonight, the newly released tapes granting an astonishing look at the twisted mind of a serial killer. from jack the ripper to john wayne gave see, murders who seem to chose their victims at random fascinate and terrify us. it was the disappearance of an 18-year-old alaskan girl that led to police unravel one such killer's astounding 11-year killing spree. neal karlinsky brings us the chilling details for our series, "crime and punishment." >> reporter: you're watching 34-year-old israel keyes describe over coffee and a bagel his strategy for hunting and killing innocent people. >> back when i was smart, i would let them come to me. just a remote area. kind of go to a remote area that's not anywhere near where you live. but that other people go to, as well. >> reporter: the police interrogation is in anchorage, alaska, where keyes was being held for the killing of samantha koenig, seen her putting her hands up